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spring入门-----spring中遍历各种集合
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spring-collection.xml
[html]?view plaincopy
<?xml?version="1.0"?encoding="UTF-8"?>?? <beans?xmlns="http://www.springframework.org/schema/beans"?? ????xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"?? ????xsi:schemaLocation="http://www.springframework.org/schema/beans?? ???????????http://www.springframework.org/schema/beans/spring-beans.xsd">?? ?????? ????<bean?id="collectionBean"?class="www.csdn.spring.collection.set.CollectionBean"?scope="singleton"?lazy-init="default">?? ?????????? ????????<property?name="sets">?? ????????????<set>?? ????????????????<value>岑紅軍</value>?? ????????????????<value>軍哥</value>?? ????????????????<value>哈哈</value>?? ????????????????<value>呵呵</value>?? ????????????????<value>嘿嘿</value>?? ????????????????<value>洗洗</value>?? ????????????</set>?? ????????</property>?? ????????? ????<property?name="users">?? ????????<!--?<list>?? ????????????<ref?bean="u1"/>?? ????????????<ref?bean="u2"/>?? ????????????<ref?bean="u3"/>?? ????????????<ref?bean="u4"/>?? ????????</list>?-->?? ????????<array>?? ????????????<ref?bean="u1"/>?? ????????????<ref?bean="u2"/>?? ????????????<ref?bean="u3"/>?? ????????????<ref?bean="u4"/>?? ????????</array>?? ????</property>?? ?????? ????<property?name="map">?? ????????<map>?? ????????????<entry?key="1"?value-ref="u1"></entry>?? ????????????<entry?key="2">?? ????????????????<ref?bean="u2"/>?? ????????????</entry>?? ????????????<entry?key="3"?value-ref="u3">?? ????????????</entry>?? ?????????? ????????</map>?? ????</property>?? ?????? ????<property?name="props">?? ????????<props>?? ????????????<prop?key="1">jdbc:oracle</prop>?? ????????????<prop?key="2">jdbc:mysql</prop>?? ????????????<prop?key="3">jdbc:access</prop>?? ????????</props>?? ????</property>?? ????</bean>?? ????<bean?id="u1"?class="www.csdn.spring.collection.set.User">?? ????????<property?name="name"?value="deep"?/>?? ????????<property?name="age"?value="21"?/>?? ????</bean>?? ????<bean?id="u2"?class="www.csdn.spring.collection.set.User">?? ????????<property?name="name"?value="deepsoul"?/>?? ????????<property?name="age"?value="22"></property>?? ????</bean>?? ????<bean?id="u3"?class="www.csdn.spring.collection.set.User">?? ????????<property?name="name"?value="chrp"?/>?? ????????<property?name="age"?value="23"?/>?? ????</bean>?? ????<bean?id="u4"?class="www.csdn.spring.collection.set.User">?? ????????<property?name="name"?value="redarmy"?/>?? ????????<property?name="age"?value="28"?/>?? ????</bean>?? ?????? ?????? ?? </beans>??
User.java
[java]?view plaincopy
package?www.csdn.spring.collection.set;?? ?? public?class?User?{?? ????private?String?name;?? ????private?Integer?age;?? ????public?void?setName(String?name)?{?? ????????this.name?=?name;?? ????}?? ????public?void?setAge(Integer?age)?{?? ????????this.age?=?age;?? ????}?? ?????? ????public?String?getName()?{?? ????????return?name;?? ????}?? ????public?Integer?getAge()?{?? ????????return?age;?? ????}?? ????@Override?? ????public?String?toString()?{?? ????????return?"User?[name="?+?name?+?",?age="?+?age?+?"]";?? ????}?? ?????? ?????? }??
Collection.java
[java]?view plaincopy
package?www.csdn.spring.collection.set;?? ?? import?java.util.List;?? import?java.util.Map;?? import?java.util.Properties;?? import?java.util.Set;?? ?? public?class?CollectionBean?{?? ?????? ????????public?Set<String>?sets;?? ?? ????????public?void?setSets(Set<String>?sets)?{?? ????????????this.sets?=?sets;?? ????????}?? ?????????? ????????public?CollectionBean()?{?? ????????????super();?? ????????????System.out.println("========================");?? ????????}?? ?????????? ?????????? ????????public?List<User>?users;?? ????????public?void?setUsers(List<User>?users)?{?? ????????????this.users?=?users;?? ????????}?? ?????????? ?????????? ????????public?Map<Integer,User>?map;?? ?? ????????public?void?setMap(Map<Integer,?User>?map)?{?? ????????????this.map?=?map;?? ????????}?? ?????????? ?????????? ????????public?Properties?props;?? ?? ????????public?void?setProps(Properties?props)?{?? ????????????this.props?=?props;?? ????????}?? ?????????? }??
TestBean.java
[java]?view plaincopy
package?www.csdn.spring.collection.set;?? ?? import?java.util.Iterator;?? import?java.util.List;?? import?java.util.Map;?? import?java.util.Map.Entry;?? import?java.util.Properties;?? import?java.util.Set;?? ?? import?org.junit.Test;?? import?org.springframework.context.ApplicationContext;?? import?org.springframework.context.support.ClassPathXmlApplicationContext;?? ?? public?class?TestBean?{?? ?????? ????@Test?? ????public?void?tests(){?? ????????ApplicationContext?context?=?new?ClassPathXmlApplicationContext(?? ????????????????"classpath:spring-collection.xml");?? ????????CollectionBean?bean?=?context.getBean("collectionBean",?? ????????????????CollectionBean.class);?? ????????System.out.println("---------------set----------------");?? ?????????? ????????Set<String>?sets=bean.sets;?? ?????????? ????????Iterator<String>?it=sets.iterator();?? ?????????? ????????while?(it.hasNext()){?? ????????????System.out.println(it.next());?? ????????}?? ?????????? ?????????? ????????System.out.println("--------------list----------------");?? ????????List<User>?users?=?bean.users;?? ????????for?(User?u?:?users)?{?? ????????????System.out.println(u.getName()?+?"-------------"?+?u.getAge());?? ????????}?? ?????????? ????????System.out.println("----------------map1---------------");?? ?????????? ????????Map<Integer,User>?map=bean.map;?? ?????????? ????????Set<Integer>?setkeys=map.keySet();?? ?????????? ????????Iterator<Integer>?itkeys=setkeys.iterator();?? ?????????? ????????while(itkeys.hasNext()){?? ?????????????? ????????????Integer?key?=?itkeys.next();?? ?????????????? ????????????User?user?=map.get(key);?? ????????????System.out.println(key+"------"+user.getName()+"-----"+"------"+user.getAge());?? ????????}?? ?????????? ????????System.out.println("--------------map2--------------");?? ?????????? ?????????? ????????Set<Entry<Integer,User>>?setentry=map.entrySet();?? ?????????? ????????Iterator<Entry<Integer,?User>>?itentry?=setentry.iterator();?? ?????????? ????????while(itentry.hasNext()){?? ?????????????? ????????????Entry<Integer,User>?entry=itentry.next();?? ?????????????? ????????????System.out.println(entry.getKey()+"----"+entry.getValue().getName()+"------"+entry.getValue().getAge());?? ????????}?? ?????????? ?????????? ????????System.out.println("--------------props-------------");?? ????????Properties?props?=?bean.props;?? ?????????? ?????????? ????????Set<String>?setprops?=?props.stringPropertyNames();?? ?????????? ????????Iterator<String>?keystr?=?setprops.iterator();?? ?????????? ????????while(keystr.hasNext()){?? ?????????????? ????????????String?key?=?keystr.next();?? ?????????????? ????????????System.out.println(key+"-----"+props.getProperty(key));?? ????????}?? ????}?? }??
控制臺輸出：
2013-4-25 10:09:49 org.springframework.context.support.AbstractApplicationContext prepareRefresh
信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@50c4fe76: startup date [Thu Apr 25 10:09:49 CST 2013]; root of context hierarchy
2013-4-25 10:09:49 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from class path resource [spring-collection.xml]
2013-4-25 10:09:49 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@3ff2cea2: defining beans [collectionBean,u1,u2,u3,u4]; root of factory hierarchy
========================
---------------set----------------
岑紅軍
軍哥
哈哈
呵呵
嘿嘿
洗洗
--------------list----------------
deep-------------21
deepsoul-------------22
chrp-------------23
redarmy-------------28
----------------map1---------------
1------deep-----------21
2------deepsoul-----------22
3------chrp-----------23
--------------map2--------------
1----deep------21
2----deepsoul------22
3----chrp------23
--------------props-------------
3-----jdbc:access
2-----jdbc:mysql
總結
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